SEISMIC VULNERABILITY ASSESSMENT THROUGH EXPLICIT CONSIDERATION OF UNCERTAINTIES IN STRUCTURAL CAPACITIES AND STRUCTURAL DEMANDS
Earthquakes are among the most important natural hazards confronting engineers, regulatory authorities, and the public at large. The assessment of strucutral seismic vulnerability has become the subject of intensive research. In this paper, a mathematical framework for seismic vulnerability assessment of building structures is presented, and the concept of vulnerability function is introduced and mathematically described, which is integrally related to the fragility assessment and reflects the susceptibility of a system to serious consequences. The limit state of a building structure is stated as the structural demand exceeding the structural capacity, so the methodology is developed based on a systematic treatment of uncertainties in seismic hazard, structural demands due to seismic hazard, and capacities of building structures in resisting limit states. The methods and assessment procedures are illustrated through a steel building frame, showing the presented methodology is an efficient tool in support of seismic vulnerability assessment. The explicit consideration of uncertainty is an integral part of the engineering risk management and decision process, and the methodology can also be applied to other buildings, bridges or civil infrastructure systems.
Seismic vulnerability assessment uncertainties structural engineering structual demands structural capacity
Quanwang LI Yu ZHANG Jiansheng FAN
Civil Engineering Department, Tsinghua University, China
国际会议
The Second Asia-Pacific Young Researchers and Graduates Symposium(第二届亚太地区结构青年专家研讨会)
杭州
英文
123-130
2010-03-27（万方平台首次上网日期，不代表论文的发表时间）